#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main()
{
    char element = '\0';
    while (scanf("%c ", &element) == 1)
    {
        if (element == 'A'
            || element == 'a'
            || element == 'E'
            || element == 'e'
            || element == 'I'
            || element == 'i'
            || element == 'O'
            || element == 'o'
            || element == 'U'
            || element == 'u')
        {
            printf("Vowel\n");
        }
        else
        {
            printf("Consonant\n");
        }
        
    }
    return 0;
}